CAPE Pure Mathematics Unit 1 · May/June 2011 · Paper 1 · Question Q18
The circle with equation x^2 + y^2 - 2x - 4y - 11 = 0 has radius equal to
- (A)
16 - (B)
11 - (C)
4 - (D)
3
The answer is shown once you've answered.
Practise this questionMore practice: the rest of this paper · more Co-ordinate Geometry questions · all CAPE Pure Mathematics Unit 1 past papers